Verb conjugation of "shift" in English

I bought the ticket very quickly and ran to the gate. A stewardess was waiting for me and waved. She shouted that I should hurry up. I ran as fast as I could and entered the gate leading to the plane.
My correction were added and highlighted with yellow markers and attached to this email. Tell me now if you have any questions about grammar rules, since I was a teacher 10 years ago.
Have I forgotten to tell you my name because you see only the usernames. I'm sorry for that. You are right the username ---- stands for Gabriel. Besides, I'm completely healthy again, thanks.